My daughter's .260 loves the Sierra 120gr Pro Hunter with H4350 and that bullet is pure deer poison here in NC. It's very accurate in her rifle and she has harvested deer from close up out to about 325yds with that bullet. Of the deer that she's killed with it all have exited with the exception of one and it was lodged under the skin after going through both shoulders and was in a nice mushroom. It has worked so well for her on deer that we've never tried anything else.
